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Pavel Vasilyev ddeeecd0b4 bluetooth: host: Add a check for num of bt_conn_tx and ACL/ISO bufs
After https://github.com/zephyrproject-rtos/zephyr/pull/72090, each
packet to be sent (wether ACL or ISO data) has a corresponding
`bt_conn_tx` object, regardless of whether a callback is used.

This means that number of packets Host can send to Controller is limited
by the smaller of two values: ACL/ISO packets Controller can receive,
and the number of `bt_conn_tx` objects allocated by Host.

A mismatch between these numbers may lead to inefficient resource usage
on either Host or Controller side. If Host allocates fewer `bt_conn_tx`
objects than the number of buffers available on Controller for a given
data type, some Controller buffers may go unused. Conversely, if Host
allocates more `bt_conn_tx` objects than Controller can consume, the
excess objects remain unused.

This commit adds a check and issues a warning if the number of
`bt_conn_tx` objects is not aligned with the number of ACL/ISO buffers
reported by Controller via the LE Read Buffer Size v1 or v2 command.

Signed-off-by: Pavel Vasilyev <pavel.vasilyev@nordicsemi.no>
2025-05-12 14:54:26 +02:00
.github Revert "ci: workflows: check for manifest dnm in the manifest workflow" 2025-05-08 19:46:03 +02:00
arch arch: x86: core: intel64: Exclude apic_id comparison for ACRN 2025-05-09 21:08:36 +02:00
boards boards: sipeed: longan_nano: Add J-Link runner support 2025-05-12 13:34:27 +02:00
cmake cmake: arm: fix ARMFVP_FLAGS for ns variant 2025-05-09 15:41:07 +02:00
doc doc: coap_server: fix msg size 2025-05-09 15:43:12 +02:00
drivers drivers: flash: stm32: fix FLASH_ constants renamed in hal_stm32 2025-05-12 13:31:23 +02:00
dts drivers/auxdisplay: add support for dfrobot LCD1602 I2C module 2025-05-12 13:31:13 +02:00
include/zephyr net: conn_mgr: set to unstable 2025-05-10 13:02:21 +02:00
kernel userspace: weak defintions for generated k-object lookup functions 2025-05-09 12:51:30 +02:00
lib linker: move last section id constant to c-code 2025-05-08 15:55:40 +02:00
misc license: Remove non-copyrightable license 2025-02-26 22:04:51 +00:00
modules drivers: can: Initial support for RZ/G3S 2025-05-09 17:59:38 +02:00
samples samples: drivers: Add auxdisplay_digits sample 2025-05-09 21:08:32 +02:00
scripts west: fix for west flash --context with sysbuild. 2025-05-08 15:56:02 +02:00
share sysbuild: Add firmware loader application type support 2025-04-25 14:03:34 +02:00
snippets snippets: remove entries 2025-05-02 16:09:52 +01:00
soc soc: nordic: nrf54l: remove workaround for nRF54L anomaly 31 2025-05-12 14:53:51 +02:00
submanifests manifest: tf-m: update to 2.1.2 2025-04-22 12:09:37 +02:00
subsys bluetooth: host: Add a check for num of bt_conn_tx and ACL/ISO bufs 2025-05-12 14:54:26 +02:00
tests tests: net: coap_server: Adjust test filters 2025-05-12 13:30:57 +02:00
.checkpatch.conf checkpatch: Adapt the braces check to Zephyr 2024-12-30 21:46:47 +01:00
.clang-format clang-format: add new line at EOF. 2025-04-11 22:07:26 +02:00
.codechecker.yml tests: Add a CodeChecker config file 2024-09-12 10:04:05 +02:00
.codecov.yml
.editorconfig
.gitattributes
.gitignore scripts: ci: check_compliance: Add sysbuild Kconfig checks 2025-01-17 16:35:53 +01:00
.gitlint gitlint: Fix dependabot exception 2025-04-09 09:02:39 +02:00
.mailmap mailmap: remove duplicate emails and normalize mapping entries 2025-01-09 14:14:10 +01:00
.ruff-excludes.toml style: edtlib: Remove the redundant keys() method 2025-03-28 12:22:00 +01:00
.ruff.toml scripts: Update and lock ruff 2024-12-03 23:30:00 +00:00
.yamllint
CMakeLists.txt linker: discard eh_frame when C++ exceptions are disabled 2025-05-08 15:55:40 +02:00
CODE_OF_CONDUCT.md
CODEOWNERS ci: add empty CODEOWNERS file 2025-03-27 09:50:45 +01:00
CONTRIBUTING.rst
Kconfig
Kconfig.constants kconfig: Add variables for integer constants 2024-07-27 20:49:15 +03:00
Kconfig.zephyr CMake: Add support for .mot binary file format 2025-05-02 09:18:16 +02:00
LICENSE
MAINTAINERS.yml MAINTAINERS.yml: Add etienne-lms as STM32 collaborators 2025-05-09 21:08:48 +02:00
README.rst README: drop the stray link underscores between badges 2024-09-26 15:20:39 +01:00
SDK_VERSION SDK_VERSION: Use Zephyr SDK 0.17.0 2024-10-22 19:04:37 -04:00
VERSION VERSION: bump to 4.1.99 2025-03-07 17:36:15 +00:00
version.h.in version.h.in: Do not use @template@ 2024-05-24 18:05:41 -04:00
west.yml manifest: Update nrf_wifi for disabling dynamic ED 2025-05-12 09:48:41 +02:00
zephyr-env.cmd
zephyr-env.sh

.. raw:: html

   <a href="https://www.zephyrproject.org">
     <p align="center">
       <picture>
         <source media="(prefers-color-scheme: dark)" srcset="doc/_static/images/logo-readme-dark.svg">
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   <a href="https://scorecard.dev/viewer/?uri=github.com/zephyrproject-rtos/zephyr"><img src="https://api.securityscorecards.dev/projects/github.com/zephyrproject-rtos/zephyr/badge"></a>
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The Zephyr Project is a scalable real-time operating system (RTOS) supporting
multiple hardware architectures, optimized for resource constrained devices,
and built with security in mind.

The Zephyr OS is based on a small-footprint kernel designed for use on
resource-constrained systems: from simple embedded environmental sensors and
LED wearables to sophisticated smart watches and IoT wireless gateways.

The Zephyr kernel supports multiple architectures, including ARM (Cortex-A,
Cortex-R, Cortex-M), Intel x86, ARC, Nios II, Tensilica Xtensa, and RISC-V,
SPARC, MIPS, and a large number of `supported boards`_.

.. below included in doc/introduction/introduction.rst


Getting Started
***************

Welcome to Zephyr! See the `Introduction to Zephyr`_ for a high-level overview,
and the documentation's `Getting Started Guide`_ to start developing.

.. start_include_here

Community Support
*****************

Community support is provided via mailing lists and Discord; see the Resources
below for details.

.. _project-resources:

Resources
*********

Here's a quick summary of resources to help you find your way around:

Getting Started
---------------

  | 📖 `Zephyr Documentation`_
  | 🚀 `Getting Started Guide`_
  | 🙋🏽 `Tips when asking for help`_
  | 💻 `Code samples`_

Code and Development
--------------------

  | 🌐 `Source Code Repository`_
  | 📦 `Releases`_
  | 🤝 `Contribution Guide`_

Community and Support
---------------------

  | 💬 `Discord Server`_ for real-time community discussions
  | 📧 `User mailing list (users@lists.zephyrproject.org)`_
  | 📧 `Developer mailing list (devel@lists.zephyrproject.org)`_
  | 📬 `Other project mailing lists`_
  | 📚 `Project Wiki`_

Issue Tracking and Security
---------------------------

  | 🐛 `GitHub Issues`_
  | 🔒 `Security documentation`_
  | 🛡️ `Security Advisories Repository`_
  | ⚠️ Report security vulnerabilities at vulnerabilities@zephyrproject.org

Additional Resources
--------------------
  | 🌐 `Zephyr Project Website`_
  | 📺 `Zephyr Tech Talks`_

.. _Zephyr Project Website: https://www.zephyrproject.org
.. _Discord Server: https://chat.zephyrproject.org
.. _supported boards: https://docs.zephyrproject.org/latest/boards/index.html
.. _Zephyr Documentation: https://docs.zephyrproject.org
.. _Introduction to Zephyr: https://docs.zephyrproject.org/latest/introduction/index.html
.. _Getting Started Guide: https://docs.zephyrproject.org/latest/develop/getting_started/index.html
.. _Contribution Guide: https://docs.zephyrproject.org/latest/contribute/index.html
.. _Source Code Repository: https://github.com/zephyrproject-rtos/zephyr
.. _GitHub Issues: https://github.com/zephyrproject-rtos/zephyr/issues
.. _Releases: https://github.com/zephyrproject-rtos/zephyr/releases
.. _Project Wiki: https://github.com/zephyrproject-rtos/zephyr/wiki
.. _User mailing list (users@lists.zephyrproject.org): https://lists.zephyrproject.org/g/users
.. _Developer mailing list (devel@lists.zephyrproject.org): https://lists.zephyrproject.org/g/devel
.. _Other project mailing lists: https://lists.zephyrproject.org/g/main/subgroups
.. _Code samples: https://docs.zephyrproject.org/latest/samples/index.html
.. _Security documentation: https://docs.zephyrproject.org/latest/security/index.html
.. _Security Advisories Repository: https://github.com/zephyrproject-rtos/zephyr/security
.. _Tips when asking for help: https://docs.zephyrproject.org/latest/develop/getting_started/index.html#asking-for-help
.. _Zephyr Tech Talks: https://www.zephyrproject.org/tech-talks